package com.css.order.util;

import java.util.Random;

/**
 * <p>
 * -
 * </p>
 *
 * @author css
 * @since 2019/12/27
 */
public class KeyUtil {

    public static synchronized String genUniqueKey() {
        Random random = new Random();
        int i = random.nextInt(900000) + 1000;
        return System.currentTimeMillis() + "" + i;
    }
}
